GLY 1010 Lecture Notes - Lecture 16: Metamorphic Rock, Andesite, Silicate Minerals
Document Summary
What is an example of a rock that does not contain a mineral obsidian, coal, amber. What is an unreliable way to identify a mineral. Color igneous rock rock that forms when magma cools and solidifies sedimentary rock a rock that forms from compressed or cemented layers of sediment metamorphic rock. A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions. What percent of earths crust is igneous rock. What percent of earths crust is metamorphic rock. What percent of earths crust is sedimentary rock. Magma that reaches earth"s surface what are the two ways to classify the texture of an igneous rock aphanetic and phaneritic. What is aphanitic texture? fine grained, cool quickly, extrusive. What is phaneritic texture? coarse grained, cool slowly, intrusive. What are the ways to classify the composition of igneous rock felsic, intermediate, mafic. Felsic light colored, nonferromagnesian mafic dark colored, ferromagnesian.
